open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptDecryptOverviewFragment.java

/*
 * Copyright (C) 2014-2015 Dominik Schürmann <dominik@dominikschuermann.de>
 * Copyright (C) 2014 Vincent Breitmoser <v.breitmoser@mugenguild.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.sufficientlysecure.keychain.ui;

import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
import org.sufficientlysecure.keychain.operations.results.OperationResult;
import org.sufficientlysecure.keychain.pgp.PgpHelper;
import org.sufficientlysecure.keychain.ui.util.SubtleAttentionSeeker;

import java.util.regex.Matcher;

public class EncryptDecryptOverviewFragment extends Fragment {

    View mEncryptFile;
    View mEncryptText;
    View mDecryptFile;
    View mDecryptFromClipboard;
    View mClipboardIcon;

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

    }

    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.encrypt_decrypt_overview_fragment, container, false);

        mEncryptFile = view.findViewById(R.id.encrypt_files);
        mEncryptText = view.findViewById(R.id.encrypt_text);
        mDecryptFile = view.findViewById(R.id.decrypt_files);
        mDecryptFromClipboard = view.findViewById(R.id.decrypt_from_clipboard);
        mClipboardIcon = view.findViewById(R.id.clipboard_icon);

        mEncryptFile.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent encrypt = new Intent(getActivity(), EncryptFilesActivity.class);
                startActivity(encrypt);
            }
        });

        mEncryptText.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent encrypt = new Intent(getActivity(), EncryptTextActivity.class);
                startActivity(encrypt);
            }
        });

        mDecryptFile.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent filesDecrypt = new Intent(getActivity(), DecryptFilesActivity.class);
                filesDecrypt.setAction(DecryptFilesActivity.ACTION_DECRYPT_DATA_OPEN);
                startActivity(filesDecrypt);
            }
        });

        mDecryptFromClipboard.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent clipboardDecrypt = new Intent(getActivity(), DecryptTextActivity.class);
                clipboardDecrypt.setAction(DecryptTextActivity.ACTION_DECRYPT_FROM_CLIPBOARD);
                startActivityForResult(clipboardDecrypt, 0);
            }
        });

        return view;
    }

    @Override
    public void onResume() {
        super.onResume();

        // get text from clipboard
        final CharSequence clipboardText =
                ClipboardReflection.getClipboardText(getActivity());

        // if it's null, nothing to do here /o/
        if (clipboardText == null) {
            return;
        }

        new AsyncTask<String, Void, Boolean>() {
            @Override
            protected Boolean doInBackground(String... clipboardText) {

                // see if it looks like a pgp thing
                Matcher matcher = PgpHelper.PGP_MESSAGE.matcher(clipboardText[0]);
                boolean animate = matcher.matches();

                // see if it looks like another pgp thing
                if (!animate) {
                    matcher = PgpHelper.PGP_CLEARTEXT_SIGNATURE.matcher(clipboardText[0]);
                    animate = matcher.matches();
                }
                return animate;
            }

            @Override
            protected void onPostExecute(Boolean animate) {
                super.onPostExecute(animate);

                // if so, animate the clipboard icon just a bit~
                if (animate) {
                    SubtleAttentionSeeker.tada(mClipboardIcon, 1.5f).start();
                }
            }
        }.execute(clipboardText.toString());
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        // if a result has been returned, display a notify
        if (data != null && data.hasExtra(OperationResult.EXTRA_RESULT)) {
            OperationResult result = data.getParcelableExtra(OperationResult.EXTRA_RESULT);
            result.createNotify(getActivity()).show();
        } else {
            super.onActivityResult(requestCode, resultCode, data);
        }
    }
}